This cache may or may not be anything to do with the local caching celebrity Izaak "still the highest cache setter in Europe" Wilson, and Back! however for the avoidance of doubt he has kindly allowed me to use part of his name in the cache title. Although he probably won't thank me for this one!
Phew - It's really stinky around here. If you get close be sure to put a Hankey over your nose!
Consider: 17th AB CDEF
The cache can be found at N 52° 34.(A+B)(D-E)(2B) W 000° 23.(2B)F(B+C)
No spoilers in the logs please. Spoiler logs will be deleted. Absolutely no correspondence will be entered into regarding anything to do with this puzzle 
Remember: No Signey, No smiley.